Mortise-lock



L. TIGRE.

MoRTIsE LOCK.

(No Model.)

' No. 322,505. PatentedJuly, 21', 18855.

NITED STATES PATENT OFFICE.

LEWIS TIGHE, OF DETROIT, MICHIGAN.

v IVIORTISE-LOCK.

SPECEPEGATIO forming part of Letters Patent No. 322,55, dated July 21, 1885. Application tiled October 30, 1884. (No mcdcLl To all whom, t may concern:

Beit known that I, LEWIS TIGHE, a citizen ofthe United States, residing at Detroit, in the county of Vayne and State of Michigan, have invented a new and useful Mortise- Lock, of which the following is a specification.

My invention relates to improvements in mortise-locks of that class which are not cased, and are adapted to be set in the door by simply boring two holes inthe edge thereof 5 and the objects of my improvements are, first, to provide an improved means for longitudinally moving the latch-bar by the partial rotation of the knob-spindle, second, to provide the latch-bar (which is dat) with a guide forr keeping it in line in its socket; third,` to provide a frame, riveted at one end to the lockface, which will support the tumbler-bolt and also furnish a bearing for the pin of a dat key, and, lastly, to simplify and cheapen the cost of the lock and reduce the time required to set it in the door. I attain these objects by the construction illustrated in the accompanying drawings, in which- Figure l is a sectional elevation of my lock, showing also in vertical section part of a door in'which it is set. Fig. 2 is a horizontal section of same at x a in Fig. 1. Fig. 3 is a detached perspective view of the lock and key and oi' a part wof a door` bored and countersunk on edge to receive the lock.

Similar letters refer to similar parts throughout the several views.

A represents the edge of a door, countersunk, as at a, to receive the face-plate B of my lock.

A A2 are two holes bored longitudinally in the door in horizontal plane to receive the latch-bar C and frame D. Y

C' is a disk, cast or otherwise, secured on the bar C, seven-eighths of an inch in dialneter, to guide it in its movements in the hole A. Aspiral spring, E, is engaged at its outer end with one of the hooks, b, at the back of the face-plate, and its rear end hooks into a staple, c, in the latch-bar, thereby causing its beveled outer end to protrude from the slot in which it slides as far as the stop-shoulder will allow it. The rear end ofv the latch-bar is an open frame, at the top and bottom of which is a toothed rack, d, with which engages a segment-pinion, e, located on the knob-spindle F, and secured within the slot between the upper and lower racks, d, by collars on each side of thehub. The spindle is inserted so as to engage the segment with either the upper or lower rack to withdraw the latch-bar within the hole A', so as to permit the opening of the door, and at the same time the latch-bolt may be reversed in thev face-plate niortise, as required for right or left hand doors, two hooks,

the spring E, as seen in Fig. 2, ineither position.

AThe frame D is a flat plate riveted at its front end to the face-plate at one side of the boltmortise. Its rear end is rectangularly bent upon itself so as to form an open-ended frame.

D' is the tumbler-bolt, whose outer end is supported in a slot in the face-plate. A stud, f, on the frame D, projecting into its notched slot g, supports its inner end and locks'it at either end of its throw. Two bearing-holes, l1., inline near the lower edge of the frame, form a bearing for the pin of a tlat-bitted key, shown in Fig. 3, and the frame is slotted out in Figs. l and 3, in which case the dooris recessed to receive it at the top of the hole A2, as shown.

door proper, in the usual manner.

construction, but can be applied to a door in mortise the door for the ordinary cased lock.

What I claim as my invention is A rlhe face-plate B, having the plate-'frame D, provided with slotted key-bearings h, and stud f, having notched slot g,

Y and spring D2, and operating by a ilat-bitted purpose set forth;

Witnesses:

H. F. EBERTs, FRED H. TIGHE.

LEVIS TIGHE.

This lock is not only simple and cheap of y b, being riveted to the face-plate to engage from the bottom of each hole to pass the keyure upon the top edge of said bolt, as shown The key and spindle holes are made in the` j less than one-third of the time required to in combination with tumbler-bolt D',

key, all arranged and operating substantially as described, and for the 

